Automatic dumping apparatus.



No. 843,482. PATENTED FEB. 5, 1907.

R. Z. MOCOY.

AUTOMATIC DUMPING APPARATUS.

APPLIUATION FILED AUG. 17. 190e.

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N0.l 84.3,'182.` PATENTED PEB. 5. 1907. R. Z. MGCOY. AUTOMATIC DUMPING APPARATUS.

APPLICATIONl FILED AUG.17. 1906.

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APPLICATION FILED AUG.17. 1906.

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No. a'.1.a.4=a2.ly PATENTED FEB. 5. 19o?. R. z. McoY.

AUTOMATIC DUMPING APPARATUS. ArrLruATxon Hnnn um. 1v. 1m.'

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RALPH Z. MoCOY, OF LOVELAND, COLORADO.

AUTOMATIC .DUMPING APPARATUS- rio. 843,482.'

specification of Letters Patent.

. ,Patented Feb. D, 190?.

i Application illed August 17. 190B. Serial No. 381,076.

To rtZ/ wtrmt' t vta/y concern:

. Bc it known that I, RALPH Z. McCoY, a citizen of theUnited States, residin at Loveland, in the county' of Larimer an State ofi Colorado, have invented new andl useful Iniprovements in Automatic Dumping Apparatus, of which the following is a specification.

This invention relates to `apparatus for l du niping-vehicles and its object is to, rovide' single operator for holding a vehicle thereon, for dumping the vehicle,.and for returning the vehicle toits initial position.

` A further .object is to provide means Awhereby the operator can control the dumping of the vehicle.

A still further object is to s o place the con trolling-l ever that the operator using itis in a positionto quickly let down the side of the' vehicle, the entire dumping 'operation being at all times within full view of there crater,

A still further object is to: i'vi e a shaki ing chute or screen actuated y` the platform to remove the earth from the dumped matelr'ilfiil-for instance, beets, potatoes, and the With the above and other objects in view the 'invention embraces a platformfwhich is mounted off center upon a shaft extending 'longitudinally thereunder and constituting a pivot therefor. 'A counterbalance is suspended from the latform, and serves to hold the saine normal ina horizontal osition. Guid e-strips are disposed on the plat orin and a vehicle is adapted to be Inovedlnto position with the wheels at one side between the guide-strips. Holdingblocks are movably mounted upon the platform and creada ted to automatically swing against the hub oi)'the wheels, so as to prevent the vehicle from overturning during the durn'pingoperation, this movement of the holding-blocks being auto- ,.inatic, The tilting of the -platforinis :con-v .fttijolled ,by brakesoperated ,from a single lever,

@and these brakes areladapted "to knormally ythe platfoit'fn gainst'movement and untilyaloaded vehicle has ,been placed u on the latfrm. When the brakes are-t en re eased, the wei ht of the vehicle Will cause the latfor'in to ti t andthe contents of vtheveicle will be discharged upon a screen or other guiding means, which is adapted to be actuated bythe operation of the platform. The Abrake series to hold theV platform while tilted,

l away 'to show the screen actuatin einem. Fig. 3 is an end elevation of t e coinposed within the `and upon being released the counterbalance 55 will return the platform `and the empty vehicle totnorrnal position. i

The invention also consists of certain other novel features of construction and combina-V Ytions of parts, which will hereinafter be more 6o -fully described, and pointed out in the claims.

VIn the accompanying drawings is shown the preferred form ofthe invention. mechanism 'which can be controlle' `by a In said drawings, Figure 1 is a view., partljr` positions, a portion ofthe wagon being shown upon the platform. Fig. 2 is a plan vew of the apparatus, one portion thereof being broken plete apparatus, showing theplatfomn tilted and a wagon in position thereon. Fig. ft isa detail view of the pivot-shaft and the brakes,

and Fig, 5 is an -enlar ed elevation of the ac- 75 tuating mechanism oid,g the holdi -blocks.

Referringto the figures by c aractersof reference, aframe is provided comprising up-` rights land 2, connected by-cr'oss-beams 4and''having a sto -beain 4 adjacent the up er Se ends of the upriilts 2. Standards 5 are f n ame 1 and Vcarry bearingboxes 6, in `which isf'journaled a. shaft 7. Boxes 8 are keyed uponthihaft and are secured to the cross joints oir4 p form` 10, so that vthe shaft and platform caused to move together.` Shaft?v is disposed to onel side `of, the longitudinal center of the platforrn and a. counter-balance 1I issus A pended from the platform 10 at one side of 9o the shaft 7, Said counterbalance having suitable b'racesi12 and adapted to hold the platform .10, normally in a horizontal position.

' Parallel guidastrips 131 are` arranged longitu dinally on the platform and are adapted to 95 receive between `them the Wheels at one side ofea vehicle 14",y "Whenothe vehicle is .disposed in manner, thc-saineiso'ff center, as clearly'7 shown in Figs. 1 and 3, an'dif'the L svehicleg; e; an ordinary one"` and empty, the ymo counterbalance 1 1 Wilifbe siiiicient to maintain rtheplatforin in its normal or horizontal position, evcnwith the vehicle thereon.` The` balance `11 is of SucheJ Weight, however, as to bev overbalanced by an ordinary vehicle, ify m5 loaded, and in order to prevent the'platform from tilting when a loaded vehicle is placed in position thereon the shaft 7 is provided t.

airis 9 of a platn 8 5 their lower ends, as shown at 28.

each end with a brake-wheel l5l these wheels is arranged `a brake-hand 16, one end of which is secured to the adjoining beam 3, while the other end has an arm 17 extending from it. One of these arms is connected to a rod 18, while the other one is secured to a bell-crank lever 19, connected to a similar lever 20 at the other end of the platforin by means of arod 18. A rod 22 connects bellcrank lever 20 with rod 21. An approach 23 is arranged at each end of the platform, so that a wagon can be moved upward onto said platform and as readily removed therefrom, and ,on one of these approaches close tothe platform is fulcrumed a lever 24, the lower end of which is connected to the rod 13. 'Ihis lever carries a dog 25, which is adapted to normal-ly engage a rack 26, so as to lock the lever against movement. Obviously by throwing this lever in one direction the two brake-bands will be tightened on the wheels 15 and will prevent the platform from tilting, or if the platform has been tilted said lever can be manipulated to hold it in tilted position. Bv means of the brake the speed of downtilting motion of the platform and its return to normal position can be readily controlled.

Arms 27 extend thronvh the platform near the strips 13 and are 7fulerumed adjacent These arm are connectedV by a holding-beam 29 and are providedv with mechanism for autornatically throwing the beam against the hubs of the wheels located between the nids-strips 13. The mechanism for operating oth arms 27 is the same, and therefore a description of one will suffice for both. As shown particularly in Fig. 5, the arm 27 has an eyebolt 30 extending therethrough above its fulcrum, and this eyebolt is connected to a rod 31, made up of two parts connected by means of a turnbuckle 32. Rod 31 is pivoted to the uper end of a lever 33, fulcrumed upon a bracket 34, connected to one of the joists 9 of the platform 10, and a rod 35 is pivoted to the other end of the lever 33andlis slidahly mounted in a ring 36, connected to'one of the uprights 5. A stop-washer 37 is movably Vr mounted on the rod 35, and a coiled sprinflr 33 surrounds this rod and bears at one end on the washer, while'its other end contacts with a head 39, adjustablv mounted on the threaded end 46 of the rod 35. The arms 27, with the beam 29 thereon, normally rest by gravity'in the positions shown in Figs. 1 and 5, and when so disposed washers 37 are out of contact with the rings 36, as shown in said j figures. Y

Uprights 41 are disposed adjacent one side of the platform 1t) and carry an inclined arm 42, from which a screen chute, or guiding device for the discharging load t3 is suspended by means of links 44. This screen is connected by a rod 45 with an eccentric 46 on On each of j the shaft 47, which is jonrnaled in the upright 41. A gear 4S rotates with this shaft and meshes with a larger gear 49, carried b a shaft 5t). A drum 51 is secured to the sha t 50, and wound therearonnd is a cable 5 1, which runs over idlers 53 and has its ends connected to a slide 54. This slide is mounted to travel within a slot 55, formed. in an arm 56, extending from the platform.

ln using this apparatus a loaded wagon to be dumped is moved from one of the a proachcs 23 onto the platform and with t ie wheels of one side between guide-strips 13. The platform is of course first locked by means of the brake-hands 16, so that it cannot tilt unless the lever 24 is released by the operator. As soon as the wagon has assumed its proper position the operator standing upon the approach 23 close to the lever 24 lowers the side 57 of the vehicle 14. He then releases lever 24 gradually, and as the weight of the vehicle 14 is sufficient to overbalance the lever 1] the contents of the wagon will be slowly discharged upon the screen 43. 'hen the platform tilts downward, the arm 56 draws the slide 54 therewith and causes the cable 52 to rotate drum 5l. Motion will thns he transmitted 'from the gear it) to gear 4N and shaft 47, and the eccentric -16 will rapidly oscillate the screen 43. lVlicn the plattform lirst begins to tilt, the fnlcrnms of the levers 33 will be drawn away from the rings 36. and therefore the washers 37 will be moved against the rings. As the platform continues to tilt the fnlcrnms of levers 33 will move farther away from the ring 36, and therefore the spring 38 will he compressed and will pull on the lever and force the arms 2T toward the vehicle, thereby bringing t he holding-beam 29 against. the huhs of the adjoining wheels. The ressnre of this heam against the hubs wil increase in proportion to the incline of the )latform, and said hcnm will prevent the vc ticle from m'ertnrning whzlc it is being dumped. As soon as the Ivehicle hns been tilted as far as possible the shaft 7 is held against ret urning by applying the brake-hands 16 to the wheels 15. After the contents of tht` wagon have heen dumped the brake-wheels 15 are released und th.` connt'erbalancc 11, assisted by the tension-"d springs 38, will promptly return the platform and the empty vehicle to their normal positions, and said vehicle can be drawn olf the platform.

It will he seen that the counterbalance 11 is applied to tht` shorter olf or ascending side of the platform, w hzlc cooperating means are provided for su port ing the vehicle upon the ulatform in snclt manner that the weight of tie load therein will he mainly thrown u )on the longer nenr" or descending side of the platform, whereby the preponderating weight of the load on the descending. or dumping side is adapted. to cause the platizo :obvious that much time and labor is saved in `Wagon is under theV person, who 1s 1n a but I do .not limit myself 'sacrificing the a -with the shaft, a vehicle-ho frm as soon as released b the band-brake,V to automatically tilt to dlnnping position. The arrangement of the counterweig t is also such that its lever e or moment of resist' ance to the tilting o the platform increases in like ratioto the increase of the leverage of the load-weight in the-swinging cfa the latform to dumping position, Hence'it W1 l be a parent that when the load isdischarged tfie counterbalance will act to automatically return the platform and unloaded vehicle. to normal position without `the use of any 'assisting ower, thus reducing the amount of attenant labor and simplifying theconstruction over prior appliances of this character. It will also be seen that by means of' this apparatus the entire operationof dumping a, absolute control of oneA position not only to manipulate the brakes, but also to unfasten the vside of the vehicle.

In view of the lcompactness of thestructure a considerableA saving in lumber may be made, and in View of the fact that the entire mechanism is controlled by a single'lever it is operating Vthe apparatus.

The ,preferred form of the invention has been set forth inthe foregoing description;

thereto, as I am` may beV made arting from'the spirit or vantages thereof, and `I therefore reserve the right-to `make vsuch' changes as fairly fall within the scnpeof the' claims. i

What is claimed iS-,

1.A The combination with a supporti freine, and a shaft mounted to rotate there' on, of a latformsecured to.. and movable with the s laft, said shaft being disposed lon- 'tudinally on the platform and removed aware that modifications therein Without de om 4the center thereof, and a counterbaly ance for holdingthe horizontal position.

2. The combination with a supportingframe; of a shaft rotatably mounted thereon, a'platform mountedv offcenterupon the shaft platform normally a and movable therewith, a counterbalance connected to the platformfor holding the same normally horizontal, and means for locking the shaft against movement.,

3. The combination with a supportingframe; of'a shaft rotatably mounted thereon, a platform mounted off center upon the shaft -and movable therewith, a counter-balance connected -to the platform for holding the same normally horizontal, brakes at the .ends of the vshaft/and means for simultaneously actuating the brakes,

.4. The combination with a supportingframe; of a shaft journaled thereon, a platformmounted ofi` center u on, and movable form,

l s carried by said means.

`upon said ro 'centric for oscillating said ding device mov-Y ably mounted upon the platform, and means operated by the tilting' ofthe platform for V5.*The combination with a tiltable` pla` and a vibratory screen-clintefof means operated-.by the tilting of the platform vibrating said screen-emite.

e. The combinaamwah a aasbapat "form, and, a; support therefor ,u of a ,vehicleholding devi'ceV 'rnovablyV 'mounted on the platform, and resilient 'means Voperated by the tilting of the'. `latform for moving said device against a ve icle upon'the latform'.

7. The` combination' with a ti table plat form, and asupport therefor; of wheel-guides upon the platform, afvehicle-holding device xmovably connected to theplatform, means o eratc'd by the `tilting ofthe platform for s ifting the Hholding device against Wheels Within the guides, and acuslnoning device '8. The combination .a tiltablc plat-` form and a support therefor; of avehcle-cn- Vgagmg arm pivotally connected to the platcrm .pivotedy connection between the lever and .farm,1and a1 resilient retarding device connected to the Alever andmovably mounted a lever fulcrumed on the platform, a

upon the'support.`

9. The combination with a tiltable platform-and a support therefor; of a vehicleholdin arm fu crumed upon the platform, a lever igulcrumed on the platform adjacent Ythe pivot thereof, a pivoted connection between the lever and arm', a rcd extending from the lever and movably engaging the supportand a cushionupon said rod.

1U. The combination with a tiltable platform and a su port therefor; of a vehicle holding arm fufcrumedrll on the platform, a lever fulcrumed uponsai the pivot thereof, an adjustable pivoted connection between the arm and lever, a rod extending from thelever andmovably engag- 'ing the sup ort, and a cushioning-sprin d) and'adaptod to be com ressev against the support tilted il. The combination with a tiltable platform and a support therefor; of a suspended guiding device carried adjacent the platform, and means operated by the tilting of the platform for oscillating said device.

12. The combination with a tiltable platform,ad a su port'therefor; of a guiding device suspendxed adjacent the platform,

when the plat orm is `mecl1anism for oscillating said device, and

-means operated by the tilting of form for actuating said mechanism. 13. The combination with a tiltable platform, and a support therefor; of a suspended lguiding device adjacent the latform, anecevicc, a drum, for rotating the ection between the K platmeans operated by the drum eccentric, 'and a flexible coi.

platform adjacent the drum and the platform for rotating said drum when the platform is tilted.

14. The combination with a tiltable platform, and a support therefor; of a vehicleholding device movably connected to the platform, means operated by the tilting of the platform for swinging the holding device against the vehicle on the platform, and manually-operated means for controlling the tilting of the platform.

15. The combination with a support; of a platform mounted to tilt thereon, a counteralance for holding the platform normally in a horizontal position, said counterbalance adapted to be overbalanced by a loaded 4vehiele upon the platform and a manuallylpl t e erated brake for control platform.` Y f i 16. The combination with a support; of a ing the tilting of shaft journaled thereon, a platform fixed to and movable with the shaft, a. vehicle-holdin arm fulcrumed upon the platform,.a lever fu crumed upon the'platform, a pivotal connection between the holding-arm and the lever. a rod extending from the lever and movably engaving the support, a cushioning device upon tic rod and 4adapted to bear against the support, and a brake upon the shaft for controlling the rotation thereof.

17. The combination with a support therefor; of a shaft journaled thereon, a platform fixed to and movable with the shaft, a v ehicle-holding arm fulcrumed u on the platform, a lever fulcrumed upon the platform, a ivotal connection between the holding-arm and the lever, a rod cxtendingfrom the lever and movably engaging the support, a cushioning device upon the rod and adapted to bear against the support, a brake upon the shaft for controlliner the rotation thereof, a screen suspended adiacent the latform, and means o erated by the tilting ofthc platform for oscil ating the screen.

18. The combination with a sup ortingframe, and `a platform mounted to ti t thereon,1o a vehicle-holding device movably mounted upon the platform, and a controlling connection between said holding device and the frame whereby the holding device isftutomatieally operated by the tilting of the platform.

19. The combination with a laterally-tiltable platform, and a support llxercforj, of' a holding device movably mounted upon the descending side of the platform, and controlling connections between said holding device and the support, whereby the tilting movement of said platform 4will throw sai'l holding device into engagement with tle adjacent wheels of a vehicle supported upon the platform.

20. The combination with a laterally-tiltable plaifirm, and a support therefor, of a guide upon the support, a iolding device pivotallv mounted upon the descending side of the platform, a lever mounted upon the platform and having one of its arms connected with the holding device, a rod connected with the other arm of the lever and movable through the guide, whereby in the tiltin of the platform the lever will be operator? to throw the holding devi( into action, and spring means associated with the rod for eX- erting a yielding resistance to the movement of said lever.

21. The combination with a laterally-tiltable platform, and a support therefor,4 of a upon the descending side of the platform, ,controlling connections between said holding device and support, whereby the tilting movement of the platform is caused to throw said support into action, and means for yieldingly opposing acushioning resistance to the action of said connections.

22. In a dumping apparatus, the combinaing platform, means r supporting a vehicle thereon so that the eater portion of the weight of the load W1 l be on the longer or dum ing side of the platform, and a counterweight acting .on the shorter side of the platform and ada ted to,be overcome b the reponderance oithe Weight of the loa to a apt the latter to automaticall tilt the platform to dumping position, an serving upon the` discharge of the load to restore the platform and vehicle to normal position.

23. In a dumping apparatus, the combination of a tilting platform adapted to tilt automatically under the weight of the load to be dumped, a counterweight for automaticall ter the discharge of the load, and braking form.

24. 'In a dumping ap aratus, a laterallytilting platform, means fin' counterbalancing the platform and automatically returningl the same to normal position, means for supporting a vehicle upon the platform so that the wei ht of the load wil-l cause the automatic tilting thereof to dumping osition, means for controlling the tilting of tlie platform, vcliicle-holding means, and means controlled by the tilting of the platform for automatically throwing said holding means into holding position.

tion of a lateral -tilting platform, means for supporting a vehicle thereon so that :the weight of the load therein will automatically tilt the ilatform, and a counterweiglht sus pended from the ascending side of t e platform, operating tomormally maintain the ,platform in horizontal position and return the same to such position after the load is i dumped. l 26. In a dum ing apparatus, the combination of a. .laterally-tilting platform, means for pivotally mounted vehicle holding device tion ofan eccentricallfy-pivoted laterally-tilt-l means for controlling thc tilting of the plat-- lOO restoring the platform to normal position a 25. ln adum ing apparatus, the combinasupporting :t vehicle upon tho platform so automatically that tho weight of the load tliorlin ywill :mim

l mntiofilly tilt tho plattform, n nounlm'lmlnnoo suspended from the short sills of tlio plzul'oini and adopted to bo ovurbalnncvil, by llio support` vehicle theroon Weight fliclhe load therein will tilt the platform, and a oounterbalanco suspended from tho ascending sido of tho plotj orrn, said counterbolance boing adapted to l support the Weight of the platformand l weight of tho load and to return tho plml'olni empty vehiclo and maintain thesmne in nor- L andempty Vehicle to normal position, and mal position, to be overbulanoed by the JAmeans for controlling tho tilting,r of tho plat- Weght of the load in the vehicle and to nuto` form.

so that thel i matioally return the vehicle and platform to In testimony whereof l :Lllx my signatuur normal position after the discharge of tho I in prosonoo of two witnesses. load. V l f r 27. In a dumping appratus, the oombinaj Y RAM' H' A' MULO) tion of a laterally-tiltin r platform, and a sup- Witnesses:

JouN L. FLETCHER,

orm being eooentrio- Y C. C. HINns.

port therefor, said plat support, means for ally plvoted upon said 

